Are you tired of wrestling your daughter into a bike helmet? Give her the Bern Nina Helmet and we doubt sheâ€™ll take it off. Bern junior helmets are smaller versions of the adult models made with the patented ZIpmoldâ„¢ technology. The best part is she can wear her Nina on a bike, skateboard, snowboard or skis. The Nina will give her the protection she needs and the style she wants.